Overview Of The Cpu - Fujitsu MB90335 Series Hardware Manual

CHAPTER 2 CPU

2.1 Overview of the CPU

2.1 Overview of the CPU
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The F MC-16LX CPU core is a 16-bit CPU designed for applications that require high-
speed real-time processing, such as consumer or vehicle-mounted equipments. The
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F MC-16LX instruction set is designed for controller applications, and is capable of
high-speed, highly efficient control processing.
■ Overview of the CPU
In addition to 16-bit data, the F
accumulator. Up to 16Mbytes of memory space (expandable) can be used, which can be accessed by either
the linear pointer or bank method. The instruction set, based on the F
reinforced by adding instructions compatible with high-level languages, expanding addressing modes,
reinforcing multiplication and division instructions, and enhancing bit processing.
The features of the F
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Minimum execution time
• 41.7ns (at machine clock 24MHz)
• The frequency of the machine clock is different according to the series.
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Maximum memory space
16Mbytes, accessed in linear or bank method
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Instruction set optimized for controller applications
• Rich data types: Bit, byte, word, long word
• Extended addressing modes: 23 types
• Reinforced high-precision operation (32-bit length) with 32-bit accumulator
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Powerful interrupt function
8 priority levels (programmable)
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CPU-independent automatic transfer function
• Up to 16 channels of the extended intelligent I/O service (EI
• Up to 16 channels of the DMA transfer (μDMAC)
• The DMA transfer (μDMAC) might not be built-in by the series.
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Instruction set for high-level language (C language)/multitask
System stack pointer/instruction set symmetry/barrel-shift instructions
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Higher execution speed
4-byte queue
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MC-16LX CPU core can process 32-bit data using an internal 32-bit
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MC-16LX CPU are explained below:
FUJITSU MICROELECTRONICS LIMITED
MB90335 Series
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MC-8L A-T architecture, has been
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OS)
CM44-10137-6E